Fire ball valve manufacturer, fire water cannon ball valve switch, vehicle mounted fire cannon ball valve

Description :

　　Ball valves are divided into:

　　a) Unidirectional sealing;

　　b) Bidirectional sealing.

　　Ball valves are divided into:

　　a) Flange connection;

　　b) Threaded connection;

　　c) One end flange, one end thread.

　　Three ball valves are divided according to their driving methods:

　　a) Manual operation;

　　b) Power driven.

　　Shandong Dongyue Crane and Fire Equipment Manufacturing Co., Ltd. produces specialized ball valves for various fire monitors, with specifications and models of FQS80A, FQS80B, FQS80C, FQS65, and FQS80A/1.6. The fire monitor specialized ball valve is produced in accordance with the public safety industry standard GA79-94 "Performance Requirements and Experimental Methods for Fire Ball Valves" of the People's Republic of China, and is specifically designed for use with fire monitors. Its structural characteristics are: the connecting flange is a DN100 flange at the inlet and a DN80 flange at the outlet, with bidirectional sealing and a manual drain valve. When used in high-altitude areas in winter, the valve can be opened after being closed to drain the water inside the valve ball, thereby preventing the ball valve from freezing. Crack. The connection method can also be customized according to user requirements.

　　operational performance

　　1. Manually driven ball valves should be equipped with handles or handwheels. Under the condition of nominal pressure difference between the inlet and outlet of the ball valve, the opening and closing force test shall be conducted according to the provisions of 6.3. The force required for opening and closing operations from the open or closed position shall not exceed 350N.

　　2. Power driven ball valves should be equipped with emergency operating handles or handwheels. When the power drive device malfunctions, the emergency operating handle or handwheel should be able to open and close the ball valve. The opening and closing force requirements are the same as 5.3.1.

　　Rotate the handwheel or handle clockwise to close, and there should be a sign indicating the direction of the switch. The handwheel or handle should have a sign indicating the position of the ball channel.

　　When the ball valve with a handle is in the fully open position, the handle should be installed parallel to the ball passage.

　　The handle or handwheel should be securely installed and easily disassembled or replaced when needed.

　　The ball valve should have a fully open or fully closed position limit device.

AfterSalesService :

• Fire ball valve manufacturer